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Tracking Wait Classes in Oracle

Kellyn Gorman looks for performance bugbears:

When we talk about optimization in Oracle, many DBAs immediately jump into metrics like CPU utilization, I/O throughput, or specific SQL queries. But there’s a critical layer of understanding that often gets overlooked and that’s Oracle Wait Classes. These categories are essential to making sense of what’s really going on inside your database, and they’re often the starting point for diagnosing and optimizing performance.

Read on to learn what wait classes are and why they’re so important for Oracle DBAs.

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